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Screening of Parkinsonian subtle fine-motor impairment from touchscreen typing via deep learning.

Abstract：

:Fine-motor impairment (FMI) is progressively expressed in early Parkinson's Disease (PD) patients and is now known to be evident in the immediate prodromal stage of the condition. The clinical techniques for detecting FMI may not be robust enough and here, we show that the subtle FMI of early PD patients can be effectively estimated from the analysis of natural smartphone touchscreen typing via deep learning networks, trained in stages of initialization and fine-tuning. In a validation dataset of 36,000 typing sessions from 39 subjects (17 healthy/22 PD patients with medically validated UPDRS Part III single-item scores), the proposed approach achieved values of area under the receiver operating characteristic curve (AUC) of 0.89 (95% confidence interval: 0.80-0.96) with sensitivity/specificity: 0.90/0.83. The derived estimations result in statistically significant ([Formula: see text]) correlation of 0.66/0.73/0.58 with the clinical standard UPDRS Part III items 22/23/31, respectively. Further validation analysis on 9 de novo PD patients vs. 17 healthy controls classification resulted in AUC of 0.97 (0.93-1.00) with 0.93/0.90. For 253 remote study participants, with self-reported health status providing 252.000 typing sessions via a touchscreen typing data acquisition mobile app (iPrognosis), the proposed approach predicted 0.79 AUC (0.66-0.91) with 0.76/0.71. Remote and unobtrusive screening of subtle FMI via natural smartphone usage, may assist in consolidating early and accurate diagnosis of PD.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Iakovakis D,Chaudhuri KR,Klingelhoefer L,Bostantjopoulou S,Katsarou Z,Trivedi D,Reichmann H,Hadjidimitriou S,Charisis V,Hadjileontiadis LJ

doi

10.1038/s41598-020-69369-1

subject

Has Abstract

pub_date

2020-07-28 00:00:00

pages

12623

issue

1

issn

2045-2322

pii

10.1038/s41598-020-69369-1

journal_volume

10

pub_type

杂志文章

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